chore: Update shivammathur/setup-php digest to bf6b4fb (#451)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -40,7 +40,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       - name: Set up PHP
-        uses: shivammathur/setup-php@ec406be512d7077f68eed36e63f4d91bc006edc4 # v2
+        uses: shivammathur/setup-php@bf6b4fbd49ca58e4608c9c89fba0b8d90bd2a39f # v2
         with:
           php-version: '8.4'
           extensions: ctype, json, mbstring

.github/workflows/integration-tests.yml

@@ -69,7 +69,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       - name: Set up PHP
-        uses: shivammathur/setup-php@ec406be512d7077f68eed36e63f4d91bc006edc4 # v2
+        uses: shivammathur/setup-php@bf6b4fbd49ca58e4608c9c89fba0b8d90bd2a39f # v2
         with:
           php-version: ${{ matrix.php }}
           coverage: xdebug

.github/workflows/unit-tests.yml

@@ -60,7 +60,7 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       - name: Set up PHP with PECL extension
-        uses: shivammathur/setup-php@ec406be512d7077f68eed36e63f4d91bc006edc4 # v2
+        uses: shivammathur/setup-php@bf6b4fbd49ca58e4608c9c89fba0b8d90bd2a39f # v2
         with:
           php-version: ${{ matrix.php }}
           coverage: xdebug